Slag steam-generator.



L. L. BATTU.

SLAG STEAM GENERATOR.

APPLICATION FILED JAN-9, 1915.

Patented Apr. 20, 1915.

THE NORRIS PETERS 00.. PHOTO-LITHO.. WASHINGTON D. C.

LEONOE L. BATTU, OF NEW YORK, N. Y., ASSIGNOR TO SLAG STEAM GENERATOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

SLAG STEAM-GENERATOR.

Application filed January 9, 1915.

To all whom it may concern Be it known that l, Lnonon L. BATTU, a citizen of the United States, whose postoflice address is 90 West street, New York city and State, have invented certain new and useful llmprovements in Slag Steam- Generators, which improvements are fully set forth in the annexed specifications.

My invention has for its object improved means through which the heat contained in molten slag is absorbed by a fluid, said fluid being in turn cooled by the circulation in its mass of an independent supply of secondary fluid, which secondary fluid is kept cool by evaporation. 1 heat the primary fluid by direct contact with the slag and at the same time 1 cool the primary fluid by circulating a secondary fluid in pipes or ducts located in the mass of the primary fluid. The secondary fluid is circulated from an evaporating tank into the pipes or ducts contained in the mass of the primary fluid in such a way that when the secondary fluid flows into the pipes or ducts contained in the mass of the primary fluid it is heated by absorption of heat from the primary fluid and then is brought back into the evaporator where it is subjected to a diminishing pressure, which has a cooling influence on said secondary fluid.

The accompanying drawing shows a vertical cross section through an apparatus embodying my invention.

In the figure A. is a container in which a mass of fluid, 20, is placed.

1 is an opening through which slag is poured into fluid 20.

G is a duct in which the slag and fluid 20 are mixed. The slag falls to the bottom of container A and the liquid separated from the slag, but heated b slag, is circulated around the casing of the duct 0.

P is a source of additional fluid. When float 3 falls below a predetermined level, link 4 operates valve 2 and additional fluid enters into container A through pipe 14:.

S is a screw conveyer for the slag which enters opening 12 of the screw and is discharged at opening 13.

B is an evaporating chamber, in which is contained a mass of fluid, 21. This fluid, through opening 23, is made to circulate through coil pipe E, which coil pipe E is located in the fluid of container A. Pump 13, connected to coil pipe E, pushes back the Specification of Letters Patent.

Patented Apr. 20, 1915.

Serial No. 1,300.

fluid through opening 24 in evaporating chamber B. Float 7 through link 6, actuates valve 5, which opens pipe 15 and allows additional fluid to flow from source B into evaporating chamber B, when the fluid in evaporating chamber B is lower than a predetermined level.

8 is a pipe connected to a power engine 0.

9 is a pipe leading the fluid which has passed through engine 0 into cooling apparatus M.

y H is a pump which handles the fluid cooled in M through pipe 11 into evaporating chamber B.

in practising my invention, 1 heat fluid 20 of container A by pouring slag or other molten material through duct C. It will also be seen that I circulate the fluid over coil pipes E, thus facilitating the interchange of temperature between fluid 20 and fluid 21. The heat absorbed by fluid 21 through its being circulated by pump F through coil pipes E is liberated by evaporation due to cooling apparatus M. The cooling apparatus M can be a standard condenser or any other type of apparatus in which heat is absorbed.

I do not wish to be restricted to the interposition of a power'apparatus between pipes 8 and 9, as the heat contained in the evaporated fluid 21 may be used in cooling apparatus M, which in this instance may be an electrolytic tank, in which the heat contained in the evaporated fluid 21 will be used to heat the bath. It may be useful to use the fluid cooled in M over and over again and for this reason I have shown pump H, which handles this cooled fluid and sends it back into evaporator B. The source of additional fluid P and B may be water, for instance, but they can also be different fluids, such as water for P and alcohol for It. Power engine 0 may be an elastic fluid turbine.

By means of my invention 1 provide an indirect method of heating a fluid. I first transfer the heat of the slag or other molten material to a fluid and I extract from this fluid the heat imparted to it by the slag by circulating the secondary fluid in the mass of the primary fluid. If the slag or molten material contains impurities, it will be seen that these impurities will not affect fluid 21, as this fluid is circulated in a closed air-- cuit. It will also be seen that I have provided means to use over and over again fluid 21 and that additional fluid from source R would only be provided to take care of leaks. I have also provided means to use two different fluids, which fluidsmay have widely varying boiling points when submitted to the same pressure. It Will also be seen that fluid 21 may be a liquid, a gas or a vapor.

I do not wish to be limited to slag and this word is used in the following claims as meaning broadly slag itself and any other preheated material.

Having thus described my invention, I claim as new:

1. In a slag steam generator means to transfer the heat contained in the slag to a primary fluid, means to transfer the heat absorbed from the slag by the primary fluid to a secondary fluid and means to cool the secondary fluid.

2. In a slag steam generator means to transfer the heat contained in the slag to aprimary fluid through mixing the slag and the primary fluid, means to transfer heat from the primary fluid into the secondary fluid and means to cool the secondary fluid.

3. In a slag steam generator means to transfer the heat contained in the slag to a primary fluid, means to circulate a secondary fluid through the primary fluid and means to cool the secondary fluid.

i. In slag steam generator means to mix slag and a-primary fluid, means to circulate the primary fluid, means to circulate a secondary fluid through the primary fluid and means to cool the secondary fluid.

5. In a slag steam generator a container for a primary fluid, means to circulate the primary fluid in said container, means to separate the slag from the primary fluid, and a duct or piping to circulate a secondary fluid through the primary fluid.

6. In a slag steam generator, a container for a primary fluid, circulating means for the primary fluid, an evaporating chamber containing a secondary fluid, means to circulate the secondary fluid through the primary fluid and means to cool the secondary fluid.

7. In a slag steam generator means to absorb heat from slag through direct contact of a primary fluid and the slag and means to circulate through the primary fluid a secondary fluid, means to cool the secondary fluid and means to add supplemental primary fluid.

8. In a slag steam generator means to absorb heat from slag through direct contact of the slag and a primary fluid, means to circulate a secondary fluid through the primary fluid, means to cool the secondary fluid and means to add supplemental second ary fluid.

9. In a slag steam generator means to absorb heat from slag through direct contact of the slag and a primary fluid and means to circulate a secondary fluid, having a lower boiling point than the primary fluid, through said primary fluid.

10. In a slag steam generator a container for a primary fluid, means to mix the primary fluid and the slag, means to circulate a secondary fluid through the primary fluid, a cooling apparatus adapted to absorb the heat from the secondary fluid and means to circulate the cooled secondary fluid discharged from the cooling apparatus through the primary fluid.

11. In a slag steam generator a container for a primary fluid, means to introduce slag into the container, a duct or piping to circulate a secondary fluid through the primary fluid, means to cool the secondary fluid by evaporation and means to return the secondary fluid after evaporation through the primary fluid.

12. In a slag steam generator a primary fluid, a secondary fluid, means to transfer heat from the slag to the primary fluid and means to transfer the heat absorbed by the primary fluid to the secondary fluid.

In witness whereof I have hereunto subscribed my name this 8th day of January,

LEONCE L. BATTU. Witnesses C. S. BROOKS, E. W. Taownnmcn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ofi Patents,

Washington, D. C. 

